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| GW Detection in Space: An Overview |
| 2017-06-08
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Institute of Theoretical Physics |
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Chinese Academy of Sciences |
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Key Laboratory of Theoretical Physics |
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Seminar |
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Title
题目 |
GW Detection in Space: An Overview |
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Speaker
报告人 |
Wei-Tou Ni |
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Affiliation
所在单位 |
Department of Physics, Tsing Hua Univ., Hsinchu |
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Date
日期 |
2017-06-08 14:00 |
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Venue
地点 |
ITP New Building 6420 room |
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Abstract
摘要 |
Gravitational wave (GW) detection in space is aimed at low frequency band (100 nHz – 100 mHz) and middle frequency band (100 mHz – 10 Hz). The science goals are the detection of GWs from (i) Supermassive Black Holes; (ii) Extreme-Mass-Ratio Black Hole Inspirals; (iii) Intermediate-Mass Black Holes; (iv) Galactic Compact Binaries and (v) Relic GW Background. In this talk, we present an overview on the sensitivity, orbit design, basic orbit configuration, angular resolution, orbit optimization, deployment, time-delay interferometry and payload concept of the current proposed GW detectors in space under study. The detector proposals under study have arm length ranging from 100 km to 1.3 × 10^9 km (8.6 AU) including (a) Solar orbiting detectors -- ASTROD-GW (ASTROD [Astrodynamical Space Test of Relativity using Optical Devices] optimized for GW detection), BBO (Big Bang Observer), DECIGO (DECi-hertz Interferometer GW Observatory), DECIGO-B, new LISA (Laser Interferometer Space Antenna), TAIJI (in Earth-like solar orbits), and Super-ASTROD (in Jupiter-like solar orbits); and (b) Earth orbiting detectors -- ASTROD-EM/LAGRANGE, GADFLI/GEOGRAWI/g-LISA, OMEGA and TIANQIN. Orbit design study and TDI (Time Delay Interferometry) study of LISA, TAIJI and ASTROD-GW will also be reported. |
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Contact person
所内联系人 |
Rong-Gen Cai |
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